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Even a minor cooling circuit leak from stress cracks or bad O-rings can stop operations, but with the Mokon Duratherm NPS negative pressure temperature control system; you can finish the production run without the nuisance of a leak or the costly interruption of a repair. The Duratherm NPS gives you accurate temperature control while creating a negative pressure condition to pull the water through the mold - essentially generating a vacuum to stop the leak and preventing downtime from delaying your process.
Whether your process requires positive pressure (no leaks present) or negative pressure (to stop a leak), Duratherm NPS provides the most efficient means of temperature control. By incorporating a Venturi jet pump and a uniquely designed reservoir, you are provided with a self-supporting means of accurate temperature control up to 180º F in a positive or negative pressure condition.
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| Model |
Pump
(Hp) |
Flow Rate
Positive Mode |
Flow Rate
Negative
Mode |
Heating
Capacity
(kW) |
Process
Connection |
Supply/Drain
Connection |
Cabinet
Dimensions
L x W x H
(inches) |
Shipping
Weight
(lbs.) |
| DT-NPS |
3/4 |
Up to 25 GPM
@ 25 PSI |
Up to
17 GPM |
9/18/24 |
1" NPT |
1/2" NPT |
32 x 17 x 27.5 |
210 |
| DR-NPS |
1-1/2 |
Up to 40 GPM
@ 32 PSI |
Up to
27 GPM |
9/18/24 |
1-1/2" NPT |
1/2" NPT |
32 x 17 x 27.5 |
210 |
| DN-NPS |
3 |
Up to 60 GPM
@ 34 PSI |
Up to
36 GPM |
9/18/24 |
1-1/2" NPT |
1/2" NPT |
32 x 17 x 27.5 |
210 |
| DO-NPS |
5 |
Up to 80 GPM
@ 38 PSI |
Up to
52 GPM |
9/18/24 |
1-1/2" NPT |
1/2" NPT |
38 x 17 x 27.5 |
225 |
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Temperature range up to 180° F.
Available in a variety of voltages. Consult factory for more information.
Option for restricted processes; available with higher pressure pump (up to 60 psi). Consult factory.
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| Standard Features |
| A• |
System reservoir - fluid supply source and air separation device. |
| B• |
Control panel mounted in operator friendly orientation. |
| C• |
Standard safety features include pressure relief valve and high temperature switch. |
| D• |
Horizontal stainless steel heater canister (shown with optional brass) with copper heating element and stainless steel diverter. |
| E• |
Makeup water and cooling solenoids. |
| F• |
Powder coated steel cabinet for protection and durability. |
| G• |
Venturi jet pump. |
| H• |
Three-way flow control valve to adjust system from positive pressure to negative pressure. |
| I• |
Stainless steel pump with silicon-carbide seal. |
| J• |
NFPA 79 and UL labeled electrical sub-panel (not shown) |
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| * Please consult factory for more information. |
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Alarms |
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All brass pump |
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Closed water circuitry |
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Control options |
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Cooling or chilled circuits |
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Door disconnect switch |
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Emergency "crash" cooling control |
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Flo-director |
| • |
Heat exchangers |
| • |
Heat remover design |
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High/low heater operation (manual or automatic) |
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Manifolds |
| • |
Modulating valves |
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NEMA 4,12, and hazardous area ratings |
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Other voltages, phases, frequencies |
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Pressure regulators |
| • |
Solid state contactors/relays |
| • |
Stainless steel cabinets and components |
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Tanks |
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T.E.F.C. motor |
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| * Other options available — see literature or consult factory for more information. |
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| Features of Standard and Optional Controls |
A variety of controls are available from Mokon to enhance the high performance of our systems. From solid state to microprocessor based, with communication capabilities to PLC type controls, Mokon can provide the type of control package right for your process.
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| Eurotherm 3216 Series |
The Eurotherm 1/16 DIN (3216) microprocessor controller is operator friendly and easy-to-use. Standard features include a microprocessor PID controller for the highest accuracy in temperature control, a dual LCD display that shows set point and actual fluid temperature, and scrolling text messages that deliver plain language messages to let users know exactly what is happening to the process. There are optional 1/8 or 1/4 DIN controllers available, with high/low deviation alarm, remote set point and retransmission and serial communication. A five-year warranty comes standard with the controller.
Click on the links below for more information on the Eurotherm 3200 Series controllers:
- 3216 Spec Sheet
- 3200 Series Manual |
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| Custom Controls |
| Mokon’s ability to meet customers’ specific requirements is seen not only in custom system designs, but also in controls. Our engineers can custom design a control package that meets your specific processing needs, from brand name controls, to direct computer/host machine interfacing. All of which can be expected with the same quality and durability that our customers expect from our complete line of temperature control systems. |
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